Senior Full-Stack Engineer — AI-Driven Web & Growth(Remote)

Praktika; Greater London; Hybrid; GBP 110,000 - 140,000; Full time

Benefits offered by this job

Equity and stock options

26 days holidays + bank holidays

Annual off-site (Dubai)

Health and wellness via SafetyWing

AI toolkit access (Claude, Cursor, Cod

$1,000 annual education budget

Fully remote — work from anywhere

Job summary

Praktika is an AI-native education company delivering language learning at scale. We are hiring a Senior Full-Stack Engineer to own and evolve every web-facing surface, from onboarding to customer portals and internal tools.

You’ll partner with Product, Marketing, and Growth to ship features end-to-end and measure their impact. You’ll lead architecture, run experiments, and drive conversion-focused development in a fully remote, async environment across a distributed team.

Qualifications

• Product-first mindset: you think in user problems and business outcomes, not just code.
• Extensive experience with TypeScript, React (hooks, context, state management), and Node.js.
• Proficiency across modern full-stack tooling: Next.js (or equivalent), CSS-in-JS or Tailwind.
• Hands-on experience integrating auth providers (Firebase, Auth0), payment systems (Stripe, RevenueCat, PayPal), feature-flag platforms (LaunchDarkly, Flagsmith), and analytics tools (Amplitude, PostHog).
• Strong UI/UX sensibility; you care about animation, micro-interactions, and conversion details.
• Comfortable working with RESTful APIs and collaborating closely with backend teams.
• Data-driven approach with proven experience in A/B testing, funnel optimization, and analytics.
• Ability to thrive in an async, distributed, written-first culture.

Responsibilities

• Own the entire web stack: marketing site, onboarding funnels, customer portals, web app, and internal tools.
• Lead architecture, development, experimentation, and operations across all web applications.
• Drive product decisions: contribute to the vision, design and run A/B tests, analyze results, and iterate quickly.
• Build adaptive, animated, mobile-first experiences that convert and delight users.
• Integrate with backend services (via Swagger docs), authentication providers (Google/Apple SSO), and payment gateways (Stripe, PayPal, RevenueCat).
• Set up and optimize analytics, tracking, and conversion funnels in collaboration with Growth and Marketing.
• Ship production-ready code end-to-end; from idea through deployment to monitoring.

Skills

TypeScript

React

Node.js

Next.js

CSS-in-JS / Tailwind

Auth providers (Firebase/Auth0)

Payment systems (Stripe/PayPal/Revenue

Tools

Firebase

Auth0

Stripe

RevenueCat

PayPal

LaunchDarkly

Flagsmith

Amplitude

PostHog

Swagger

Job description

Praktika is an AI-native education company delivering language learning at scale. We are hiring a Senior Full-Stack Engineer to own and evolve every web-facing surface, from onboarding to customer portals and internal tools.

You’ll partner with Product, Marketing, and Growth to ship features end-to-end and measure their impact. You’ll lead architecture, run experiments, and drive conversion-focused development in a fully remote, async environment across a distributed team.